Technological threats and the Inhumans. Main Villain: Ultron / Truman Marsh
The animated series ran for five seasons from 2013 to 2019, primarily on Disney XD. It follows the core team—Iron Man, Captain America, Thor, Hulk, Black Widow, Hawkeye, and Falcon—as they face evolving threats from the Cabal to Thanos and Ultron. Season 1: The Protocol (2013–2014) avengers assemble episode list
This season expands the roster, eventually bringing in Ant-Man and Ms. Marvel. The narrative centers on Thanos’s invasion of Earth and the formation of the supervillain group, the Cabal, which fractures the Avengers' focus. Technological threats and the Inhumans
The team reunites after Captain America is seemingly killed by Red Skull. 1 & 2. The Avengers Protocol avengers assemble episode list